Final answer:
The Supreme Court case that established that suspects must be informed of their rights to remain silent and to have an attorney during questioning is Miranda v. Arizona (1966), which gave birth to the Miranda rights.
Step-by-step explanation:
The Supreme Court case where suspects were ruled to must be told of their constitutional rights to remain silent, that anything they say can be used against them, and of their right to have an attorney present during questioning is Miranda v. Arizona, 384 U.S. 436 (1966). This landmark decision held that the Fifth Amendment requires law enforcement officials to advise a suspect interrogated in custody of their rights to remain silent and to have an attorney, either retained or appointed. These warnings are known as Miranda rights. The decision was a result of several cases where defendants were interrogated without being aware of their rights, leading the court to set a precedent that applies to all suspects under custodial interrogation.
Example Miranda Warning:
You have the right to remain silent when questioned. Anything you say or do may be used against you in a court of law. You have the right to consult an attorney before speaking to the police and to have an attorney present during questioning now or in the future. If you cannot afford an attorney, one will be appointed for you before any questioning, if you wish. If you decide to answer any questions now, without an attorney present, you will still have the right to stop answering at any time until you talk to an attorney. Knowing and understanding your rights as I have explained them to you, are you willing to answer my questions without an attorney present?